The current standard to predict social perceptiveness is the Reading the Mind in the Eyes (RME) test [1]}. Using data from a large meta analysis [2]} of 5,279 individuals in 1,356 groups, we find RME explains between 0% and 3% of variation in team performance (depending on the task). The \(\alpha _C^\mathit {team}\)  measure we propose above explains 8% after observing only 25% of team communication, an improvement of about 270%. Furthermore, our proposed measure captures social perceptiveness passively and in real time which can be used to interpret a team’s current status and determine opportunities for interventions. The measure also extends previous measures of “information diversity” [3]} by directly considering how useful a specific message is likely to be for a given recipient. It thus captures aspects of collective attention and memory [4]}.
